Climate
Milford Haven’s unique seabed habitat revealed in major new study
A NEW scientific study has revealed the distinct and ecologically significant nature of Milford Haven’s maerl beds, shedding fresh light on how one of Wales’ most fragile underwater habitats can be protected for the future.
Maerl beds are slow-growing, coral-like accumulations of red algae that form intricate structures on the seabed. These habitats support a wide range of marine species and act as important stores of blue carbon, helping absorb and lock away carbon dioxide.
The research, led by the University of Exeter with contributions from Natural Resources Wales (NRW), used Whole Genome Sequencing (WGS) to analyse maerl samples from Pembrokeshire to Cornwall. The data allowed scientists to assess genetic diversity across the region and identify the populations most at risk from environmental pressures and human activity.
Crucially, the study found that Milford Haven’s maerl bed is genetically distinct from other sites, underlining its uniqueness and highlighting the need for site-specific protection.
Dr Frances Ratcliffe, Senior Marine Environmental Assessment Officer for NRW, said:
“This research highlights the unique nature of the maerl bed in Milford Haven, showing it to be both highly genetically diverse and distinct from other populations in the wider region.
“We’re delighted to have contributed to this work, which makes the case for protecting this special habitat even stronger. Sadly, the bed is currently in a degraded state, and we hope the findings will help inform future efforts to safeguard these vital ecosystems for generations to come.”
Dr Tom Jenkins, the project lead, added: “This is the first research project to assemble reference genomes for two maerl-forming species and use Whole Genome Sequencing to study populations around the southern and south-west coasts of Britain.
“It reveals levels of genetic diversity and identifies populations dominated by maerl clones, which together could have implications for their vulnerability and resilience to future changes in climate and the environment.”
NRW is also leading a wider project examining declines in benthic habitats — ecosystems found on or near the seabed — to strengthen Wales’ understanding of underwater biodiversity. This includes research into herring in Milford Haven, sponge communities in the Menai Strait, and modiolus horse mussel reefs off the north Llŷn Peninsula. The work is funded through the Welsh Government’s Nature Networks programme.
Business
Officers to decide outcome of turbine scheme after receiving bats report
A PEMBROKESHIRE wind turbine scheme which was recommended to be refused over a lack of information on how it may affect bats, which led to it being previously withdrawn, has gained some breathing space to address the issue.
In December of last year, in an application recommended for refusal at Pembrokeshire County Council’s planning committee, Constantine Wind Energy Ltd sought permission for a 76-metre-high wind turbine at Summerton Farm, Sageston.
Back in 2024, an application to replace a current 60.5m high turbine on the site with one up to 90 metres, or just under 300 foot, at the site was refused on the grounds its height and scale would have a detrimental impact on the visual amenity of the locality, with the additional clause of failing to comply with supplementary guidance.
A report for committee members on the latest application says the smaller turbine than previously proposed, representing a 16-metre increase in height from a previously granted turbine “would not be sufficient for it to become an overbearing feature in the landscape,” with no objections from either the Council Landscape Officer or Natural Resources Wales.
However, concerns were raised by the council ecologist that the applicant’s Preliminary Ecological Appraisal Report was incomplete, with a bat survey not included.
It was recommended for refusal on the grounds that appraisal report, and technical note, “do not adequately address the impact of the proposed wind turbine on bat activity in the area”.
At the December meeting, members heard the scheme had been temporarily withdrawn to deal with issues raised, the application returning to the June meeting, again recommended for refusal on a lack of information on the potential impact on bats.
A report for members ahead of the June meeting says the application was withdrawn from the December agenda to allow the applicant time for consideration of the Council Ecologist’s request for further survey work.
It said the applicant had started a bat survey programme, with further surveys due to take place in July and September, the applicant asking for the matter to be deferred in November.
At the June meeting, Richard Grisk, on behalf of the applicants, referenced the additional surveys, calling for a further deferral, saying it would be far most cost efficient and effective for all parties, the applicants intending to resubmit an expected to be near-identical scheme, other than the bat reports, if it was refused.
After a great deal of deliberation on the matter, Cllr John Cole, who had initially proposed a deferral, moved the scheme be decided by officers under delegated powers.
This would allow them to either approve or refuse after the bat reports have been received.
Members, by 10 votes to four, supported the delegated decision, expected later this year.
Climate
Chris Packham and Ben Lake MP back Cardigan climate film screening
A FREE public screening of The People’s Emergency Briefing will take place at Small World Theatre, Cardigan, on Friday, June 26.
Doors will open at 6:30pm, with the 50-minute film followed by a facilitated community discussion.
The screening forms part of a growing UK-wide programme of events aimed at ensuring the public, community leaders and decision-makers are clearly informed about the climate and nature crisis, and what it could mean for communities across the country.
The film follows the National Emergency Briefing, held at Westminster Central Hall in November 2025, where more than 1,200 MPs, peers and leaders from business, culture, faith, sport and the media gathered to hear from leading experts on the UK’s exposure to climate and nature risks.
Introduced by Chris Packham CBE, the briefing examined the implications of climate and nature breakdown for food security, public health, infrastructure, the economy and national security, as well as evidence-based actions which could help reduce those risks.
That national event has now been adapted into The People’s Emergency Briefing, a public film being screened in communities across the UK, including more than 100 screenings in Wales.
Chris Packham said: “I’d encourage people everywhere to attend a screening of The People’s Emergency Briefing. It creates exactly the kind of honest local conversation we now urgently need, both about what these changes mean where we live, and about what we can do together to address them.”
Organisers say the Cardigan screening is particularly relevant given recent flooding on the Teifi, longer hot dry spells, stronger storms, heavier rainfall, biodiversity loss and concerns over regular pollution incidents.
Following the film, those attending will be invited to take part in a structured open discussion focusing on what positive changes can be made locally.
Local MP Ben Lake is expected to attend, along with Members of the Senedd, councillors and other community leaders who have been invited.
The discussion will be led by Jane Davidson, former Welsh Government minister for environment, sustainability and housing, who helped inspire and lead the Well-being of Future Generations (Wales) Act 2015 and the Wales Net Zero 2035 project.
Philip Hughes, one of the event organisers, said: “This is a great opportunity for people to come together, look at the evidence, and begin a more open and informed conversation about what it means for our community.
“We often hear the views of ‘Dave down the pub’, but this film gives evidence from top scientists, economists, doctors and security chiefs on why bolder action is now needed.”
Tickets for the Aberteifi screening are free, but booking is essential as space is limited.
To book, contact [email protected] or call 07787 197630.
More information about The People’s Emergency Briefing can be found at www.nebriefing.org/screening-map

Business
Sageston 76-metre tall wind turbine set to be refused
A CALL for a five month breathing space for a wind turbine application which was previously withdrawn late last year over a lack of information on how it may affect bats, is expected to be turned down and the scheme refused.
In December of last year, in an application recommended for refusal at Pembrokeshire County Council’s planning committee, Constantine Wind Energy Ltd sought permission for a 76-metre-high wind turbine at Summerton Farm, Sageston.
Back in 2024, an application to replace a current 60.5m high turbine on the site with one up to 90 metres, or just under 300 foot, at the site was refused on the grounds its height and scale would have a detrimental impact on the visual amenity of the locality, with the additional clause of failing to comply with supplementary guidance.
A report for committee members on the latest application says the smaller turbine than previously proposed, representing a 16-metre increase in height from a previously granted turbine “would not be sufficient for it to become an overbearing feature in the landscape,” with no objections from either the Council Landscape Officer or Natural Resources Wales.
However, concerns were raised by the council ecologist that the applicant’s Preliminary Ecological Appraisal Report was incomplete, with a bat survey not included.
It was recommended for refusal on the grounds that appraisal report, and technical note, “do not adequately address the impact of the proposed wind turbine on bat activity in the area”.
At the December meeting, members heard the scheme had been temporarily withdrawn to deal with issues raised, the application now returning to the June meeting, again recommended for refusal.
A report for members ahead of the June meeting says the application was withdrawn from the December agenda to allow the applicant time for consideration of the Council Ecologist’s request for further survey work.
“Further consultation took place with Natural Resources Wales (NRW), the result being that NRW agree with the Council Ecologist’s stance that additional survey work is required.
“The applicant has submitted a request for a further deferral of the application to allow the necessary surveys to be carried out. The bat survey programme requires surveys over Spring, Summer and Autumn. The Spring survey was completed on May 14 and the Spring and Summer surveys will take place on July 14 and September 7 respectively.
“The applicant expects a report to be issued to the council for consultation before the end of September, with consultation with NRW and the council ecologist expected to be completed during October 2026.
“On the assumption that the proposal is considered acceptable the applicant expects that the application could be considered at the November 2026 planning committee meeting.
“Accordingly, the applicant requests deferral of the application to the November 2026 planning committee meeting to avoid the unnecessary costs, resources and timelines for a resubmitted application.”
The application is recommended to be refused at the June meeting of Pembrokeshire County council’s planning committee on the basis that “the Preliminary Ecological Appraisal Report and Technical Note do not adequately address the impact of the proposed wind turbine on bat activity in the area. As such, therefore, the proposal is contrary to the requirements [of planning policy].”
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